package com.javaapi.practices;

import java.util.Scanner;

public class Test45 {

	// 题目：判断一个素数能被几个9整除
	// 题目错了吧？能被9整除的就不是素数了！所以改成整数了。

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		System.out.print("请输入一个整数：");
		int num = s.nextInt();
		int tmp = num;
		int count = 0;
		for (int i = 0; tmp % 9 == 0;) {
			tmp = tmp / 9;
			count++;
		}
		System.out.println(num + " 能够被 " + count + " 个9整除。");

	}

}
